201050005 has 12 divisors (see below), whose sum is σ = 261247140. Its totient is φ = 148467072.

The previous prime is 201049999. The next prime is 201050029. The reversal of 201050005 is 500050102.

It can be written as a sum of positive squares in 6 ways, for example, as 6140484 + 194909521 = 2478^2 + 13961^2 .

It is not a de Polignac number, because 201050005 - 2³ = 201049997 is a prime.

It is a super-2 number, since 2×201050005² = 80842209021000050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118120 + ... + 119809.

It is an arithmetic number, because the mean of its divisors is an integer number (21770595).

Almost surely, 2^201050005 is an apocalyptic number.

It is an amenable number.

201050005 is a deficient number, since it is larger than the sum of its proper divisors (60197135).

201050005 is a wasteful number, since it uses less digits than its factorization.

201050005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237960 (or 237947 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 201050005 is about 14179.2103094636. The cubic root of 201050005 is about 585.8251729519.

The spelling of 201050005 in words is "two hundred one million, fifty thousand, five".